
Does he have DIFFICULTY
maintaining erections?
The Big Bang Theory Season 9, Episode 23

I have such DIFFICULTY
speaking to women...
The Big Bang Theory Season 1, Episode 6

I'm having some DIFFICULTY bonding
with a colleague at work...
The Big Bang Theory Season 2, Episode 13

but DIFFICULTY initiating a
urine stream could be a symptom
The Big Bang Theory Season 5, Episode 17

That's even factoring in your DIFFICULTY...
The Big Bang Theory Season 4, Episode 9